细菌耐药性表型的检测方法有()A.琼脂筛选试验 B.头孢硝噻吩滤纸片法 C.碘淀粉测 发布时间:2017-02-15 09:11 │ 来源:www.tikuol.com 题型:多项选择题 问题: 细菌耐药性表型的检测方法有()A.琼脂筛选试验B.头孢硝噻吩滤纸片法C.碘淀粉测定法D.E试验E.双相纸片试验
题型:多项选择题 【说明】 传输门是传输系统中的重要装置。传输门具有Open(打开)、Closed(关闭)、Opening (正在打开)、StayOpen(保持打开)和Closing(正在关闭)五种状态。触发状态的转换事件有click、complete和timeout三种。事件与其相应的状态转换如下图所示。 下面的Java代码1与Java代码2分别用两种不同的设计思路对传输门进行状态模拟,请填补代码中的空缺。【Java代码1】 public class Door { public static final int CLOSED = 1; public static final int OPENING = 2; public static final int OPEN = 3; public static final int CLOSING = 4; public static final int STAYOPEN = 5; private int state = CLOSED; //定义状态变量,用不同的整数表示不同状态 private void setState(int state){ this.state = state;}//设置传输门当前状态 public void getState() { //此处代码省略,本方法输出状态字符串, //例如,当前状态为CLOSED时,输出字符串为"CLOSED" } public void click() { //发生click事件时进行状态转换 if ( (1) ;) setState(OPENING); else if ( (2) ;) setState{CLOSING); else if ( (3) ;) setState(STAYOPEN); } //发生timeout事件时进行状态转换 public void timeout() { if (state == OPEN) setState(CLOSING);} public void complete() {//发生complete事件时进行状态转换 if (state == OPENING) setState(OPEN); else if (state == CLOSING) setState(CLOSED); } public static void main(String [] args){ Door aDoor = new Door(); aDoor.getState();aDoor.click();aDoor.getState();aDoor.complete(); aDoor.getState();aDoor.click();aDoor.getState();aDoor.click(); aDoor.getState();return; } }【Java代码2】 public class Door { public final DoorState CLOSED = new DoorClosed(this); public final DoorState OPENING = new DoorOpening(this); public final DoorState OPEN = new DoorOpen(this); public final DoorState CLOSING = new DoorClosing(this); public final DoorState STAYOPEN = new DoorStayOpen(this); private DoorState state = CLOSED; //设置传输门当前状态 public void setState(DoorState state) { this.state=state;} public void getState(){ //根据当前状态输出对应的状态字符串 System.out.println(state.getClass().getName()); } public void click(){ (4) ;}//发生click事件时进行状态转换 public void timeout(){ (5) ;}//发生timeout事件时进行状态转换 public void complete(){ (6) ;)//发生complete事件时进行状态转换 public static void main(String[]args){ Door aDoor = new Door(); aDoor.getState();aDoor.click();aDoor.getState();aDoor.complete(); aDoor.getState();aDoor.timeout();aDoor.getState();return; } } public abstract class DoorState { //定义所有状态类的基类 protected Door door ; public DoorState(Door doer) { this.door = door;} public void click() {} public void complete() {} public void timeout() {} } class DoorClosed extends DoorState { //定义一个基本的Closed状态 public DoorClosed(Door door) { super(door);} public void click() { (7) ;) //该类定义的其余代码省略 } //其余代码省略 查看答案
题型:多项选择题 英法两国的政体组织形式异中有同,同中有异,表现在()①英国是议会制君主立宪制政体,法国是民主共和制中的半总统半议会制政体②两国都是资产阶级 * * ,执政的根本目的都是维护资本主义制度,为资产阶级利益服务③法国的共和政体在表面上比英国的君主立宪制更加民主一些④从国体和阶级性质上看,二者本质相同A.①B.①②C.①②③D.①②③④ 查看答案
题型:多项选择题 更换钻头重新下入钻具时,应()。A.慢慢下至孔底,先开泵再开钻B.慢慢下至孔底,先开钻再开泵C.慢慢下至距孔底1~2m,同时开启钻机和水泵D.慢慢下至距孔底1~2m,先开泵至孔口返水再开钻 查看答案